Scraping attachment



July 25, T. DU

SCRAPING ATTACHMENT Filed Jan.

2 Sheets-Sheet 1 56 66 fi s TQoMAs 3'- 'DuNN INVENTOR QMEWQWW ATTORNEY July 25, 1967 T. J. DUNN SCRAPING ATTACHMENT 2 Sheets-Sheet 2 Filed Jan. 5, 1965 m m. WM v N Z N U D 3 M m T e O o S ATTORNEY United States Patent 3,332,159 SCRAPING ATTACHMENT Thomas J. Dunn, P.O. Box 110,

Hackettstown, NJ. 07840 Filed Jan. 5, 1965, Ser. No. 423,560 6 Claims. (CI. 3742) ABSTRACT OF THE DISCLOSURE A side mounted plow for use with a snow removal device, the plow being engaged with the device and arranged to force plowed material into the path of the device.

The present invention relates to scraping attachments for use with snow removal devices, or the like, the scraping attachments being adapted for clearance of sidewalks, curbs, sidings, and the like.

In clearance of snow from streets, highways, and the like, a particular problem exists in respect of adjacent sidewalks and curbs, particularly on bridges and in congested areas, in that snow left on such curb and sidewalks when main roadways are cleared, is subjected to alternate freezing and thawing. During periods of thaw, melting occurs with a consequent runback of water onto the cleared area. This runback often thereafter freezes on the street or highway with the result that dangerous patches of ice are formed which are extremely difficult to remove and which recur so long as the sidewalk, curb or siding has accumulated snow piled thereon. In the employment of previous removal equipment, the problem is compounded by the fact that much of the presently available equipment causes or permits the pushing of snow from the roadway onto the siding, thus resulting in a further accumulation on the siding which lasts throughout substantially the entire winter in colder areas, whereby the problem exists throughout the winter months.

It is therefore an important object of the present invention to provide a device for the removal of snow and ice from curbs, sidewalks and sidings adjacent streets and highways. The present invention comprehends the incorporation of the device as an accessory or attachment to existing snow removal equipment or as a feature of special apparatus hereinafter described,"but in either case, primarily as an adjunct to main highway clearance equipment adapted for use contemporaneously therewith.

A related objective is to provide a scraping attach ment adapted to direct scraped material into the path of the main snow removal'equipment for remote discharge away from the area of probable runback.

Another important object resides in the provision of an attachment as aforesaid selectively operable at heights varying with respect to the plane of the street or highway, for the scraping of elevated sidings where necessary.

Another object of the invention is to provide an attachment of the character indicated above, including a contact edge, and having means to maintain the contact edge in engagement with the area to be scraped despite deviations thereof.

Other and further objects and advantages of the invention will become apparent to those skilled in the art from a consideration of the following specification when read in conjunction with the annexed drawings, in which:

FIGURE 1 is a perspective view showing a main snow removal device with a scraping attachment constructed and assembled in accordance with the teachings of this invention;

FIGURE 2 is an enlarged, fragmentary side elevational view of the assembly, showing a typical hydraulic pressure supply circuit diagrammatically;

3,332,159 Patented July 25, 1967 FIGURE 3 is a sectional view on the line 33 of FIGURE 2, looking in the direction of the arrows;

FIGURE 4 is a partial front elevation from the line 4-4 of FIGURE 2;

FIGURE 5 is an enlarged, detail cross-section on the line 55 of FIGURE 2, looking in the direction of the arrows; and

FIGURE 6 is a view on the line 6-6 of FIGURE 5, looking in the direction of the arrows.

Referring to the drawing in greater detail, and initially to a preferred embodiment of application of the device hereof, a typical snow removal assembly is generally designated in the drawing by reference numeral 10. The assembly 10 includes a main snow removal device 12 which may be of any suitable type. In the illustrated embodiment of the invention, the main device 12 includes a housing 14 including an outer side 16, and an attachment console and frame 18, the device 12 being thereby adapted for use with a prime mover and power source as shown in my prior copending application Ser. No. 417,167, filed Dec. 9, 1964. While ideally suited for use in this combination, it is reiterated that any type of main removal equipment and power source may incorporate the present device. The illustrated device 12 further includes forward auger type conveyors 20 which direct snow into a chute 22 from which it is propelled by a blower 24 to a remote discharge area.

The scraping device 26 hereof is adapted for attachment to main removal devices such as the device 12. A mounting plate 28, having forward and rear ends 30, 32, respectively, is secured to the outer side 16 of the device 12, as by rivets 34, at a convenient selected height. Fixed to the plates 28 adjacent its rear end 32 and projecting outwardly therefrom is a pair of substantially vertically aligned, substantially cylindrical upper and lower axles 36, 38, each having an enlarged inner portion 40 adjacent the plate and having diametric openings 42 adjacent their distal ends, for a purpose described below.

Adjacent the forward end 30 of the plate 28 is mounted a pair of arcuate tracks members 44, 46, each having an outward leg portion 48 and facing, horizontal arms 50, the respective legs and arms being secured together and to the plate by rivets 52. The facing arms 50 extend inwardly and define an arcuate trackway which, as best seen in FIGURE 2, extends upwardly andrearwardly with respect to the forward end 30 of the plate.

The apparatus 26 further includes upper and lower gusset members 54 and 56, respectively. Each gusset member has a flat central section 58 about which extends an inner member 60, a forward member 62, and an outer member 64. Tubular trunnions 66, connecting the inner member 60 and outer member 64, are journalled about the axles 36 and 38, and bearing washers 68 retain the trunnionsthereon, the washers being held in place by cotter pins 70 extending through the openings 42.

An inwardly projecting stub axle 72 is secured to the inner member 60 of the lower gusset 56, as by welds 74, and as shown in FIGURES 2, 5 and 6, has a segmental guide lug 76 secured to its outer end. The guide lug is slidably engaged in the trackway defined by the track members 44, 46, and rides under the arms 50 thereof.

The outer section 58 of the upper gusset 54 has a pair of apertured connection ears 78 extending upwardly therefrom, connected to the extensible portion 80 of a hydraulic cylinder 82 which is connected, as at 84, to the main device side wall 16.

A pair of forwardly extending arms 88, 90, extend from each of the gusset members 54 and 56, the arms of each pair having coaligned apertures 92 formed therein.

The assembly includes a lateral plow frame 94 including aback 96, an elongated outer frame 98, and an inner frame 100. Clevises 102 are secured to the frame back 96 for alignment with each of the arms 88 and 90, and pins 104 extend through the clevises and apertures. Thus, the gussets 54 and 56 are connected for conjoint movement responsive to lifting or lowering of the portion 80 of the cylinder 82 in parallelogram fashion, while the frame 94 must remain, by reason of its pivot connection to the arms, in substantially parallel relation to its original axis of inclination.

An arcuate plow 106 of concave-convex form from top to bottom is attached to the frame 94 and is inclined for discharge of plowed material into the auger 20. The plow includes a vertical outer wall 108 to prevent discharge in an opposite or outward direction.

Referring specifically to FIGURE 2, a typical power supply circuit for the attachment lift, intended as exemplary rather than by way of limitation, is diagrammatically shown. In the example, a pump P supplies fluid pressure through a multiposition valve V, having elevation, depression, and neutral positions, through a conduit 110 to the cylinder 82. A return line 112 extends through the valve V to a reservoir R. Thus, in operation, the plow height may be preselected, as would be desirable where a uniform height relation between the main area and siding exists, or the attachment may be left in a floating relation as where there is height variance between the roadway and siding.

Having described and illustrated an embodiment of this invention in some detail, it will be understood that this description and illustration has been offered by way of example only, and that the invention is to be limited in scope only by the appended claims.

What is claimed is:

1. A scraping attachment for a snow removal device, the device including a side, the scraping attachment comprising:

a plate secured to the side of the device;

spaced axles extending from the plate;

arcuate track means spaced from the axles and secured to said plate;

a pair of gusset members, each having opposite ends,

and pivoted about the axles at one of the ends; guide means extending from one gusset member and engaged slidably in the track means;

lift means extending between the other gusset member and the side of the device; and

a plow pivotally connected to the gusset members and arranged to plow material into the path of the device.

2. A scraping attachment as defined in claim 1, wherein:

the guide means comprises a segmental lug.

3. A scraping attachment as defined in claim 1, wherein:

the lift means comprises a hydraulic cylinder.

4. A scraping attachment as defined in claim 1, and:

an outer side wall on the plow.

5. A lateral area scraping attachment for a snow removal device, the attachment being adapted for clearance of sidewalks or the like, the snow removal device including a side and having a power source, the scraping attachment comprising:

a mounting plate connected to the removal device side,

the plate having forward and rear ends;

spaced apart, outwardly extending horizontal axles secured to the plate adjacent the rear end thereof;

arcuate track members, each including an outward leg and facing, horizontal arms, secured to the plate adjacent the forward end thereof, and curving upwardly and rearwardly;

upper and lower gusset members, each having an inner member, a forward member, an outer member, and a tubular trunnion journalled about the horizontal axles whereby the gusset members are pivoted thereabout;

a substantially cylindrical axle extending from the inner member of the lower gusset;

a guide lug secured to the axle and engaged in said track members and retained by the horizontal arms thereof;

hydraulic lift means secured at one end to the device and at the other end to the upper gusset member and activated by the power source to selected heights;

the gussets each having forwardly extended arms;

a lateral plow frame having a back, an elongated outer frame, and an inner frame, the back being pivotally connected to the arms for limited pivotal movement with respect thereto when the arms are raised in parallelogram fashion;

an arcuate plow fixed to the frame and arranged to direct material engaged thereby towards the device; and

a vertical wall mounted outboard of the plow.

6. A scraping attachment for a snow removal device having a side, the scraping attachment comprising:

mounting means secured to the side of the snow removal device;

axle means projecting from the mounting means;

track means spaced from the axle means and secured to the mounting means;

supporting members pivotally secured at one end to the axle means;

guide means extending from the support members for engagement with the track means;

lift means extending between the support means and the side of the snow removal device; and

a plow connected to the supporting members and arranged to plow material into the path of the device.

References Cited UNITED STATES PATENTS 2,193,532 3/1940 Frink 3742 2,223,213 11/1940 Kersten. 2,604,774 4/ 1950 Williamson 37-43 3,266,050 8/1966 Reeder 37-143 X FOREIGN PATENTS 361,022 5/1962 Switzerland.

ABRAHAM G. STONE, Primary Examiner.

R. L. HOLLISTER, Assistant Examiner. 

1. A SCRAPING ATTACHMENT FOR A SNOW REMOVAL DEVICE, THE DEVICE INCLUDING A SIDE, THE SCRAPING ATTACHMENT COMPRISING: A PLATE SECURED TO THE SIDE OF THE DEVICE; SPACED AXLES EXTENDING FROM THE PLATE; ARCUATE TRACK MEANS SPACED FROM THE AXLES AND SECURED TO SAID PLATE; A PAIR OF GUSSET MEMBERS, EACH HAVING OPPOSITE ENDS, AND PIVOTED ABOUT THE AXLES AT ONE OF THE ENDS; GUIDE MEANS EXTENDING FROM ONE GUSSET MEMBER AND ENGAGED SLIDABLY IN THE TRACK MEANS; LIFT MEANS EXTENDING BETWEEN THE OTHER GUSSET MEMBER AND THE SIDE OF THE DEVICE; AND A PLOW PIVOTALLY CONNECTED TO THE GUSSET MEMBERS AND ARRANGED TO PLOW MATERIAL INTO THE PATH OF THE DEVICE. 